Huawei Band 4e Manual page 23

You can wear your band when you are washing your hands, in the rain, or swimming in
•
shallow water. Do not wear your band when you are showering, diving, scuba diving, or
surfing.
The following may affect the water resistance of your band:
Dropping your band or any other impact on the band.
•
Exposing your band to alkaline substances, such as soap, body wash, perfume, emulsion, or
•
oil.
Using your band in humid and high temperature conditions, such as in a hot shower or
•
sauna.
More guidance
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